1998 UM15

1998UM15, 2000 ED77, 2000ED77, 44440, J98U15M, K00E77D

All data for this body: [vot]

MPC data
Name (number) 1998 UM15 (44440)
a 2.17670
e 0.16924
i / sin(i) 6.0812 / 0.10594
q 1.80831
Q 2.54508
ω 235.5711
Node 63.6706
m 179.7392
n 0.3069
Epoch 2460800.5
nobs 2210
nopp 20
Years observed 1987-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.176
ep 0.102
sin(ip) 0.094
G 0.150
H 15.400
Mass
D 2.04 0.394
pV 0.466 0.3012
Value
Rotational Period 2.960
Period quality 2
Spectral Class S
Spectral Class Score 24.502
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1764 0.1018 0.0942 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.04 0.394 0.394 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.466 0.3012 0.3012 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.40 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.78 2 Synodic Erasmus 2019ApJS..242...15E Lightcurve
2.965 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Q 0.12 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.996000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT
S S 0.8715 0.9290 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9324 0.9290 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9504 0.9290 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT